Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Section showing the erect position of fossil trees in coal-sandstone at St. Etienne. (Ales. Brongniart.) now little doubt that M. Brongniart's view was correct. These plants seem to have grown on a sandy soil, liable to be flooded from time to time, and raised by new accessions of sediment, as may happen in swamps near the banks of a large river in its delta. Trees which delight in marshy grounds are not injured by
Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Section showing the erect position of fossil trees in coal-sandstone at St. Etienne. (Ales. Brongniart.) now little doubt that M. Brongniart's view was correct. These plants seem to have grown on a sandy soil, liable to be flooded from time to time, and raised by new accessions of sediment, as may happen in swamps near the banks of a large river in its delta. Trees which delight in marshy grounds are not injured by being buried several feet deep at their base; and other trees are continually rising up from new soils, several feet above the level of the original foundation of the morass. In the banks of the Mississippi, when the water has fallen, I have seen sections of a similar deposit in which portions of the stumps of trees \vith their roots in situ appeared at many different heights.* 'When I visited, in 1843, the quarries of Treuil above men- tioned, the fossil trees seen in fig. 537 were removed, but I obtained proofs of other forests of erect trees in the same coal- field. Snags.—In 1830, a slanting- trunk was exposed in Craigleith quarry, near Edinburgh, the total length of which exceeded 60 feet Its diameter at the top was about 7 inches, and near the base it measured 5 feet in its Fig. 538. Inclined position of a fossil tree, cutting through horizontal beds of sandstone, Craigleith quarry, Edinburgh. Angle of inclination from a to I 2V. Principles of Geology, 9th ed., p. 268.
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